Tom, Here is the wiring diagram that I include with the mComm manual. The PC side is a db9.
7 Wire Cable PC Model-T DCD 1 NC RX 2 → 2 TX TX 3 ← 3 RX DTR 4 ← 6 DSR GND 5 ↔ 7 GND DSR 6 ← 20 DTR RTS 7 → 5 CTS CTS 8 ← 4 RTS RI 9 NC Kurt On Fri, Mar 29, 2019, at 12:13 PM, Thomas Morehouse wrote: > Thanks John. As one end of the cable is the USB plug, and the other is the 9 > pin plug, am I correct to say I need to add the null modem adapter to the 9 > pin end? > > Thanks. > Tom M. > > > On Fri, Mar 29, 2019 at 3:09 PM John R. Hogerhuis <[email protected]> wrote: >> Yes you need a cable wired as a null modem or you need a null modem adapter >> on a straight through cable. >> >> -- John
